@proceedings {13681,
	title = {Insights on the geodynamics of western Greece deduced from 3-d stress tensor inversion and traveltime tomography.},
	journal = {1st meeting of theTectonics \& Structural Geology Committee of the GSG},
	year = {2016},
	publisher = {Geological Society of Greece },
	address = {Athens, 6 December 2016},
	abstract = {<p>This region of western Greece has been frequently activated during the last decade, providing a large\&nbsp;amount of enhanced quality new seismic information that was recorded by the Hellenic Unified Seismological Network (HUSN). In this work, the results of earthquake relocation, stress inversion and seismic\&nbsp;traveltime tomography are presented, towards investigating the geodynamics of the study area. Inversion\&nbsp;of ~2300 focal mechanisms indicates obliquity by 30 ̊ between shearing and the maximum horizontal\&nbsp;stress along the major strike-slip faults, consistent with clockwise crustal rotation. Within the lower crust,\&nbsp;the stress field appears to be constrained by larger scale deformation. Seismic velocity anomalies have\&nbsp;been resolved by regional body-wave traveltime tomography, applying an iterative tomographic inversion\&nbsp;scheme using phase data from more than 5000 seismic events. Preliminary 3D tomographic models indicate the presence of gross structures related with the western Hellenic Trench, the Cephalonia Transform\&nbsp;Fault (CTF), the Aitoloakarnania shear zone, the Corinth Gulf and the Messinia graben. Dipping towards\&nbsp;the east and segmentation of CTF between Cephalonia and Lefkas is evidenced by the resolved anomalies\&nbsp;while a predominant NE-SW oriented low velocity zone observed in central Peloponnesus, related with\&nbsp;dextral strike-slip faulting, marks a 90{\textdegree} rotation of the extensional stress direction that is found to occur\&nbsp;at both sides.</p>},
	url = {https://drive.google.com/file/d/1Dwch8MP0Ae19w95gyQIH_3ckoifSU3_R/view},
	author = {A. Karakonstantis and Kassaras, I. and V. Kapetanidis and Papadimitriou, P. and A. Ganas}
}
